Spinning ring



Dec. 5, 1961 P. F. GRISHIN ETAL 3,011,301

SPINNING RING Fi'led Feb. 2, 1959 INVENTO PETER E GRISHIN Rs ZOLTA N SZALOKI BY ERNEST E. H.ZIMMERMANN,J R.

United States Patent O 3,011,301 SPINNING RING Peter F. Grishin and Zoltan Szaloki, Whitinsville, and

Ernest E. H. Zimmermann, Jr., Webster, Mass, assignors to Whitin Machine Works, Whitinsville, Mass.,

a corporation of Massachusetts Filed Feb. 2, 1959, Ser. No. 790,482 1 Claim. (Ci. 57-119) This application is a continuation-in-part of our prior application Serial No. 725,862, filed by us on April 2, 1958, now Patent No. 2,889,679.

This invention relates to spinning rings of the type commonly used in spinning frames for converting textile fibers into yarn. A wire link or traveler is loosely mounted on the top flange of such a spinning ring, and guides the yarn to an associated bobbin. The traveler is drawn around the ring by the pull of the yarn on the bobbin, and the resulting yarn is wound upon a cop or bobbin mounted on the spindle.

In recent practice, both the spindle speed and the size of the yarn package have been substantially increased, and the rate of traveler spe has been correspondingly increased, with more rapid tra eler wear.

In the conventional spinning ring, a vertical web supports a relatively wide top flange on which the traveler is mounted and rotated.

It is the general object of this invention to provide a traveler bearing surface on the top flange of a spinning ring which will present a relatively large traveler contact area, and also to provide increased clearance space for the larger counts of yarn.

To the attainment of this object, a relatively large bearing surface is provided on the lower inside portion of a ring flange, and'this surface is of only slightly smaller radius than the associated traveler surface. Increased yarn clearance in the traveler is provided by sharply sloping back or beveling the inner upper surface of the ring at the inner upper corner thereof.

The invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly set forth in the appended claim.

A preferred form of the invention is shown in the accompanying drawings, in which FIG. 1 is a sectional side elevation showing parts of a bobbin and spinning ring in operative relation; and

FIG. 2 is an enlarged cross section of the upper flange of this improved spinning ring, together with an associated conventional traveler.

. Referring to FIG. 1, a spinning ring 30 is mounted in a holder 31which is secured in the upper face of a ring rail 32. A bobbin B is mounted on a spindle S, and a strand of yarn Y is directed to the bobbin through a traveler T. This general combination of parts is standard practice, and this invention relates particularly to the The lower inner part 41 of the top flange 40 of the specific construction of the top flange 40 of the ring 30.

relatively large radius R. This inner upper portion of the top flange 40 is inwardly beveled at 44 to provide very substantial clearance space for heavier yarn.

The outer upper surface of the ring may be flat and horizontal, as in the usual construction, but is preferably inwardly and upwardly inclined as shown at 45 in FIG. 2 for convenience in manufacture. The surface defined by the radius r is preferably tangential also to the surface 44.

The usual running position of the yarn Y with respect to the traveler T and the ring 30 is as shown at the right in FIG. 2, and provides substantial clearance between the yarn Y and the upper inner portion of the ring. Gripping or binding of the yarn between the ring and traveler is thus efl'ectively prevented, even when relatively heavier yarn is being spun.

The inner part 41 of the flange 40 is in substantial line contact with the coacting face of the traveler T over quite a large area, so that the unit pressure of the traveler against the ringflange is greatly reduced, even with relatively heavy yarn. The increased contacting areas also permit much more'rapid heat transfer from the traveler to the ring flange.

Having thus described our invention and the advantages thereof, We do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claim, but what is claimed is:

A spinning ring having a normal vertical web and having a top flange formed integral therewith and substantially overhanging said vertical web both inwardly and outwardly of said ring, and said top flange being in general of normal ring-flange height and cross section and being inwardly and downwardly beveled in its upper inner portion to provide a substantial traveler-clearance space, and the top surface of said top flange being outwardly and downwardly beveled at a conservative angle to provide clearance and to facilitate ring construction, the intersection of the inwardly and outwardly beveled portions lying in a vertical plane which lies inwardly of the plane of the vertical web to impart structural strength to the top flange in the portion thereof lying generally inwardly of the web, and the traveler-engaging inner and lower portion of said top flange being of a radial crosssection to facilitate substantial line-contact with an associated traveler.

References Cited in the file of this patent UNITED STATES PATENTS 

